Good Article, though I disagree with your conclusion.
It is already possible to 3d-print some organs based on your own tissue, so it is compatible with your body.
And that's already available.
On top of that, technology grows exponentially.
And with growth, the technology becomes cheaper and more wide-spread as well (Unless it's regulated by governments ...).
Heck, there are attempts, and beliefs, that it will be possible to print food soon which will solve the problem of pollution caused by agriculture/meat production.
What does that mean to us?
That means we will live long enough to get to a point where we can essentially replenish our bodies. Or at least keep them the same.
Though it is important to take care of your body.
As you pointed out, it might be too late for us once all this happen. But what that means to me is, don't be foolish and take care of yourself. Eat proper food, move your body and connect with people.
I do not quite understand with what you disagree: you not agree that we may not be able to survive?
Yes we can change our bodies, but we have only 115 years for our brain.
the brain is just another organ.
Once we understand it more it can be fixed also.
Augmentation for example.
It can be SUPER CHARGED...
it's already happening...neural nets.
Yes, i will make my next post about it, what we have reached in this direction, and what problems we have.
And a small spoiler: we still don't have the exact topology of neural connections of our brain, it limits our ability in augmentation.